Eugene, OR Weatherproofing and Weatherization Services

It depends. Windows themselves have such a low R-value (resistance value), that investment to return in a weatherization aspect alone isn't great. However, going from a single-pane aluminum framed window to a newer double-pane vinyl window will have much better effects on your home's cash value. In any weatherization job, air sealing is much more effective than changing out a window. With that being said, there are specific cases where changing out windows is imperative to reducing energy costs, mostly in mobile homes.

Blown insulation offers better coverage and adapts to irregular spaces, providing superior thermal protection compared to batt insulation.

Dense packing is defined as blowing insulation into a wall cavity at 3.5lbs/ft3. This achieves not only a high R-value but also a superior air barrier. Dense packing is most commonly used when wall insulation is non-existent.

There are a few different methods of achieving this, the most common is in part with re-roofing the mobile home after blowing insulation into the attic cavity.

Closed-cell spray foam insulation is a type of insulation material commonly used in buildings to provide thermal insulation and air sealing. It is made by mixing two components, usually polyol resin and isocyanate, which react to form a foam when sprayed onto a surface.

The term "closed-cell" refers to the structure of the foam, where the tiny cells within the foam are sealed off from each other, creating a barrier that blocks the passage of air and moisture. This makes closed-cell spray foam insulation highly effective at preventing heat transfer and improving energy efficiency in buildings.

Closed-cell spray foam insulation is known for its high insulating value, ability to add structural strength to a building, and resistance to water and moisture. It is often used in areas where space is limited or where a high level of insulation is required, such as in walls, roofs, and crawl spaces

While spray foam insulation offers numerous benefits, it also has some disadvantages:

1. Cost: Spray foam insulation can be more expensive upfront compared to other insulation materials like fiberglass or cellulose.
2. Installation: Proper installation of spray foam insulation requires specialized equipment and training. Improper installation can lead to performance issues and potential health hazards.
3. Health concerns: During installation, the chemicals used to create spray foam insulation can release volatile organic compounds (VOCs) and other potentially harmful substances. Proper ventilation and safety precautions are necessary to minimize exposure.
4. Environmental impact: The production process of spray foam insulation involves the use of chemicals that can have environmental impacts. Additionally, spray foam insulation is not biodegradable and can contribute to landfill waste at the end of its lifespan.
5. Off-gassing: After installation, spray foam insulation may continue to off-gas VOCs for a period of time, which can contribute to indoor air quality concerns.
6. Rigid application: Once spray foam insulation has been applied, it cannot be easily removed or modified without significant effort and expense.
7. Potential for expansion: Closed-cell spray foam insulation can expand if not applied properly, potentially causing damage to walls or other structures.
8. Fire hazard: While spray foam insulation can be fire-resistant when properly installed and treated, it can also pose a fire hazard if exposed to high temperatures or if the chemicals used are not properly controlled.

Despite these disadvantages, many homeowners and builders still choose spray foam insulation for its superior insulating properties and air-sealing capabilities. However, it's essential to weigh these factors against your specific needs and budget before deciding on insulation materials.

A professional insulation contractor will help you determine the best approach for your home. Generally, a mixture of multiple insulation types is used to utilize the advantages of the different types.

Yes, blown insulation can be installed in various attic configurations, including those with irregular shapes or obstructions.

With proper installation and maintenance, blown insulation can last for several decades, providing long-term energy savings and comfort.

While some homeowners may attempt DIY installation, professional installation ensures proper coverage and safety compliance, minimizing the risk of issues such as settling or compression.

The amount of insulation needed depends on factors such as attic size, desired R-value, and local climate conditions. An attic insulation contractor can provide an accurate assessment and recommendation based on your specific needs.

Many types of blown insulation, such as cellulose, are made from recycled materials and are considered environmentally friendly options for attic insulation.